Video: Tim Ferriss shows how to make a T-handle, a kettlebell replacement.

I do a 5/5 cadence — 5 seconds up, then 5 seconds down — for Nos. 1 and 2 of both workouts. If I don’t complete (n-1) reps of either Nos. 1 or 2, I stop the workout for the day, though I do the optional exercises.